Self-Similar Structure and Experimental Signatures of Suprathermal Ion Distribution in Inertial Confinement Fusion Implosions

Autor:	Grigory Kagan, Michael Rosenberg, Hans Rinderknecht, Alex Zylstra, Daniil Svyatskiy, Chris McDevitt, Chengkun Huang
Rok vydání:	2015
Předmět:	Physics Fusion FOS: Physical sciences General Physics and Astronomy Ion temperature Kinetic energy Physics - Plasma Physics Ion Plasma Physics (physics.plasm-ph) Distribution function Physics::Plasma Physics Ion distribution Atomic physics National Ignition Facility Inertial confinement fusion
Zdroj:	Physical review letters. 115(10)
ISSN:	1079-7114
Popis:	The distribution function of suprathermal ions is found to be self-similar under conditions relevant to inertial confinement fusion hot-spots. By utilizing this feature, interference between the hydro-instabilities and kinetic effects is for the first time assessed quantitatively to find that the instabilities substantially aggravate the fusion reactivity reduction. The ion tail depletion is also shown to lower the experimentally inferred ion temperature, a novel kinetic effect that may explain the discrepancy between the exploding pusher experiments and rad-hydro simulations and contribute to the observation that temperature inferred from DD reaction products is lower than from DT at National Ignition Facility. Comment: Revised version accepted for publication in PRL. "Copyright (2015) by the American Physical Society."
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0b353a63fcd460e86bea5959ec67f38 https://pubmed.ncbi.nlm.nih.gov/26382682 Zobrazit plný text záznamu